Izvorni znanstveni članak
Electron and hole confinement states in quantum dot disc
M. H. Hekmat
; Theoretical Physics Department, National Research Center, Cairo, Egypt
A. Elmeshad Nagwa
; Theoretical Physics Department, National Research Center, Cairo, Egypt
S.A. Safwan
; Theoretical Physics Department, National Research Center, Cairo, Egypt
Sažetak
The ground-state energies of an electron and of a hole in a finite-potential quantum dot disc of GaAs are calculated. Solving the Schrödinger equation for the two particles separately, we calculated the first two excited states for each one. To study the effect of the disc dimensionality on the eigen-energies, we considered different discs with different values of radius (R) and width (L). Discussing the potential effect, we examined the eigen-value behaviour at different values of the barrier heights. The corresponding wave functions are obtained.
Ključne riječi
GaAs; quantum dot; electron; hole; first two excited states; barrier heights
Hrčak ID:
301652
URI
Datum izdavanja:
1.3.2004.
Posjeta: 511 *